Search found 225 matches

by Dunmunro
22 Mar 2024, 00:43
Forum: General
Topic: Suggestions for next SP
Replies: 6
Views: 1197

Re: Suggestions for next SP

fabdev wrote:
22 Mar 2024, 00:08
Thanks, may you send me or post a sample image?
Actually it would be possible to deconvolve differently all parts of the image, for example if coma is present. Every corner of the image will be different.
Fabio.
I could email you a sample fits image.
by Dunmunro
20 Mar 2024, 21:23
Forum: General
Topic: Suggestions for next SP
Replies: 6
Views: 1197

Re: Suggestions for next SP - multizone deconvolution

I was thinking about how to implement more effective deconvolution that would work better for images that have a large variation in the PSF from the centre to the edge of the sensor. A simple way would be to automatically create a series of circular masks. with the inner mask covering about 25% diam...
by Dunmunro
05 Mar 2024, 15:08
Forum: Images, research, events
Topic: PK205 +14.1 AKA Medusa Nebula
Replies: 0
Views: 156

PK205 +14.1 AKA Medusa Nebula

This is 33 x 15min subs (8.25 hours) taken through a 10in SCT at F8 using an Orion Star Shoot Pro V1 atop a CEM120 mount. Autoguided, autofocused, and processed in AA8 SP5. Flat fielded, DF subtracted. processing history: 14:00:40 Remove gradient adaptive sub. 80 13:57:53 DDP 90 30 0 25 50 1.45 20 1...
by Dunmunro
27 Feb 2024, 23:09
Forum: Images, research, events
Topic: Jones-Emberson 1 (PK 164+31.1)
Replies: 0
Views: 176

Jones-Emberson 1 (PK 164+31.1)

Jones-Emberson 1 (PK 164+31.1) is a 14th magnitude planetary nebula in Lynx. This image is the result of a Sigma-Sum stack of 36 x 900sec subframes (9 hours integration time), taken by an Orion Starshoot Pro V2 APSC CCD camera through a Meade 10in F6.3 SCT @ F5 via a Starizona .75X SCT reducer on a ...
by Dunmunro
12 Feb 2024, 15:32
Forum: Scripts
Topic: Shifting a set of images by a given shift (dX,dY) depending on image
Replies: 5
Views: 241

Re: Shifting a set of images by a given shift (dX,dY) depending on image

Hi, I am at the very beginning of my leaning curve about scripts. So, I have a number of questions ... I would like to shift a set of images (image-1.fit, image-2.fit, image-3.fit, ..., image-i.fit) by a given shift (X, Y)(i), the value of each shift (X,Y) dependant on the image number i. I know ho...
by Dunmunro
29 Dec 2023, 23:59
Forum: Image processing and analysis
Topic: Demosaic - extracting green channels
Replies: 2
Views: 783

Re: Demosaic - extracting green channels

Hi The command "Demosaic RGB" allows the user to extract a single colour channel. However for Bayer patterns with 2 green channels, does AA8 sum or average these two or just pick one? Regards Andrew The green channels are combined, but I think this is a function of the debayering process itself.
by Dunmunro
09 Nov 2023, 16:24
Forum: General
Topic: Sun Tracking
Replies: 2
Views: 691

Re: Sun Tracking

I recently tried doing a goto to the Sun but got an error message. Sorry I cannot quote the message since it has been to many days back it was something about format if I remember correctly. Is there a way to do a GOTO to the Sun or is this a safety issue to prevent accidently looking at the Sun? I...
by Dunmunro
24 Sep 2023, 03:31
Forum: Instrumentation
Topic: Alt-az mounts
Replies: 2
Views: 920

Re: Alt-az mounts

I am curious to know whether others have plans similar to mine. My next telescope setup will use an alt-az mount. While until recently the combination of an alt-az mount and a rotator was the province of very large professional telescopes, it is increasingly available for small telescopes, and thes...
by Dunmunro
23 Aug 2023, 04:37
Forum: Instrumentation
Topic: using AA8 via The Sky X
Replies: 1
Views: 872

Re: using AA8 via The Sky X

Are there any members who are using AstroArt xx via The Sky X to control Software Bisque paramount GEM. I am doing this with AA8 and I have the necessary ASCOM Sky X driver from software Bisque. I think I'm having some problems using the AA8's goto - image -plate solve and synch on camera image, re...
by Dunmunro
15 Aug 2023, 04:24
Forum: Images, research, events
Topic: Astroart and FFT
Replies: 1
Views: 1272

Re: Astroart and FFT

Thanks!
by Dunmunro
15 Aug 2023, 04:22
Forum: Scripts
Topic: Camera Control Setup tab - Scripts
Replies: 5
Views: 1022

Re: Camera Control Setup tab - Scripts

In the Camera Control SETUP tab, can someone please explain what is the purpose of the Scripts choice? It appears that while an existing script can be selected from the Library, there can only be one recorded? When does such a script run? It appears that to remove that script one must select New? R...
by Dunmunro
17 Jul 2023, 05:15
Forum: Images, research, events
Topic: M101 SN2023
Replies: 1
Views: 1150

Re: M101 SN2023

Hi' In the spring I was able to make a blink of the supernovae in M101. Short after it was discovered ! The before pic was taken 21-04-2023 And the SN are from the 24-05-2023 M101.gif Sorry, I don't know why the gif won't Blink It does blink and it looks great! Nice work. I'm in my summer astro dow...